RE: [TCML] How about some Tesla Coiling?

[Jeff Behary <electrotherapy@xxxxxxxxxxx>]

Derek,
 
I should rephrase the word "challenge".  I don't mean it to be a contest, but more of a collected effort to try something different and see what happens as a result.
 
These machines were demonstrated at lectures, and were known to be operated for extended periods to demonstrate X-Ray tubes, Geissler Tubes, etc.  Average current consumed from the wall was around 30 watts.  
 
I think if someone uses the same kicking coil concept and gets only a 3" spark, or they get a 6" spark but it takes 60 watts instead of 30 it will still be a good learning experience regardless.  
 
As an example, look at the Science First Tesla Coil that various scientific suppliers sell for kids.  Its kind of crude, but it consumes around 30 watts and makes a 2" spark using the same concept.  Maybe changing the coil design or the electromagnet would give longer sparks and make it more efficient...
 
> From: tesla@xxxxxxxxxxxxxxxxxxxxxxxx> To: tesla@xxxxxxxxxx> Subject: RE: [TCML] How about some Tesla Coiling?> Date: Fri, 15 Feb 2008 16:03:52 +0000> CC: > > Jeff, all> > I suspect it really depends on the average power, I could charge up some> large capacitors for a day at 5W draw from the mains and then run a large TC> from them giving very large arcs for a second or so.> > Is that classed as 5W draw ?> > DRSSTC's can easily be made to give 1 foot arcs in short 8uS (or so) bursts> which look continuous, average power is very small though> > Even Classic Coils are not Continuous.> > Maybe a 300Kv Marx fits this bill? Low power draw and 1 foot arcs. > > I suspect the definition of this challenge needs to be more specific..> > Cheers> Derek http://www.extremeelectronics.co.uk > > > > -----Original Message-----> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf> Of David Rieben> Sent: 15 February 2008 14:21> To: Tesla Coil Mailing List> Subject: Re: [TCML] How about some Tesla Coiling?> > Hi Jeff, all,> > I wonder if the 30 watts vs 6" sparks claim was based on actual wall plug> power draw or was based on the total energy of primary C (in J or watt/sec)> discharge per bang x BPS, or possibly even just the energy per bang? I, for> one, would be highly suspect of a 6"> or 12" discharge claim from a mere 30 or 35 watts of actual wall plug power> consumption. Am I being overly pessimistic?> > David> > > ----- Original Message -----> From: "Jeff Behary" <electrotherapy@xxxxxxxxxxx>> To: <tesla@xxxxxxxxxx>> Sent: Thursday, February 14, 2008 3:42 PM> Subject: [TCML] How about some Tesla Coiling?> > > > Chip,> > I have a challange for everyone, including me. In the early days, when > Tesla's coils were used for everyday attainable things, like powering an > X-Ray tube or lighting some Geissler tubes, there are a bunch of table top > models of machines like this:> http://www.electrotherapymuseum.com/2006/MiscOscillators/index.htm> > In many texts, the smaller versions of these coils are described as making a> > 6" spark with 5 - 30 watts of input power. I think as a collective group of> > enthusiasts we should work on something similar - something attainable, on > topic, and still requiring a fair amount of skill to accomplish. I am > willing to give space on my website for this topic, coil photos, etc. - I > think its a great opportunity to demonstrate the efficiency of some of the > modern circuits people are using to replace the kicking coil design Tesla > originally used.> > (I can stick to the old designs because its all I know.)> > There is a point when all of the "theory" arguments are "point-less" to a > certain extent. I have a firm belief that until we can at least replicate > the simple things Tesla did, and get it right, we have no reason to expect > we can accomplish greater things, if that makes sense.> > 30 watts, 6 inch sparks. To Tesla it was child's play, as these little > units seemed to litter the tables of his labs in so many photos. In the > 1897 lecture he mentioned 12" with 35 watts of power, but maybe we can keep > it simple to start!> > Jeff Behary> _________________________________________________________________> Shed those extra pounds with MSN and The Biggest Loser!> http://biggestloser.msn.com/_______________________________________________> Tesla mailing list> Tesla@xxxxxxxxxxxxxx> http://www.pupman.com/mailman/listinfo/tesla> > _______________________________________________> Tesla mailing list> Tesla@xxxxxxxxxxxxxx> http://www.pupman.com/mailman/listinfo/tesla> > > _______________________________________________> Tesla mailing list> Tesla@xxxxxxxxxxxxxx> http://www.pupman.com/mailman/listinfo/tesla
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